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25 Cards in this Set
- Front
- Back
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rounded proximal end of the humerus that articulates with the glenoid cavity of the scapula
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Head
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oblique groove distal to the head of the humerus
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anatomical neck
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lateral projection of the humerus distal to the anatomical neck
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greater tubercle
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anterior projection of the humerus distal to the anatomical neck
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lesser tubercle
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a constriction in the humerus just distal to the tubercles, where the head tapers to the shaft, fractures often occur here
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surgical neck
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the humerus is roughly cylindrical as its proximal end, but it gradually becomes triangular until it is flattened and broad at its distal end
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body (shaft)
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V-shaped area at the lateral middle portion of the humerus, serves as a point of attachment for the tendon of the deltoid muscle
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deltoid tuberosity
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a rounded knob in the lateral aspect of the distal humerus that articulates with the head of the radius
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capitulum
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an anterior depression above the capitulum of the humerus that receives the head of the radius when the forearm is flexed (bent)
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radial fossa
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located medial to the capitulum on the humerus, a spool shaped surface that articulates with the ulna
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trochlea
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an anterior depression of the distal humerus that receives the coronoid process of the ulna when the forearm is flexed
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coronoid fossa
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the large posterior depression on the distal humerus that receives the olecranon of the ulna when the forearm is extended (straightened)
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olecranon fossa
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rough projections on either sde of the distal end of the humerus to which the tendons of most muscles for the forearm are attached
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medial and lateral epicondyle
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located on the medial aspect of the forearm and is the longer of the two bones in this area, thick and notched at its proximal end and its wide triangular shaft tapers to become more narrow and cylindrical distally
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ulna
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at the proximal end of the ulna, forms the prominence of the elbow
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olecranon
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an anterior projection of the ulna distal to the trochlear notch
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coronoid process
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a notch on the anterior side of the olecranon on the ulna, receives the trochlea of the humerus to form part of the elbow
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trochlear notch
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a depression on the ulna that is lateral and inferior to the trochlear notch and articulates with the head of the radius
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radial notch
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located on the posterior side of the ulna's distal end
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styloid notch
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Which end of the ulna is the head located?
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distal
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the shorter of the two bones, located on the lateral side of the forearm, narrow at its proximal end and widens at its distal end
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Radius
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disc-shaped proximal end of the radius that articulates with the capitulum of the humerus and the radial notch of the ulna
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Head of Radius
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a roughened area of the radius inferior to the neck on the medial side, a point of attachment for the tendon of the biceps muscle
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radial tuberosity
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where the shaft of the radius widens distally on the lateral side
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styloid process
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the head of the ulna articulates with the radius
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ulnar notch
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